Whatever is my opinion is not important, but "huge majority" of 42% shouldn't be allowed to force their decision to "only" 31% minority. I think Janukovič got it right here, not wanting to side with any side and trying to just keep it as neutral as possible. It is not a good idea to decide about such a big topic like future of the whole country and which union to join based on such a small "majority".
In the long run, the best thing is to just do nothing right now, and try to reach some kind of compromise in a deeply divided country that is equally acceptable to both sides. Whatever that compromise might be, going west, or going east, or peacefully splitting the country in two/three parts, everything is better than inevitable escalation that this leads to.